Detachable equalizer wearing-plate for journal-boxes.



, -e. H. GILMAN. DETACHABLE EQUALIZER WEARING PLATE FOR JOURNAL BOXES.

APPLICATION FILED JAN. 22, l9l5.

Patented July 13, 1915.

J. xix/@ 3 GEORGE H. GILMAN, OF ST. PAUL, MINNESOTA, ASSIGNOR OF ONE-HALF TO HENRY M. ROBERTSON, OF ST. PAUL, MINNESOTA.

DETACHABLE EQUALIZER WEARING-PLATE FOR JOURNAL-BOXES.

Specification of letters Patent.

Patented July 13, 1915.

Application filed January 22, 1915. Serial N 0. 3,727.

To all whom it may concern:

Be it known that I, GEORGE H. GILMAN, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Detachable Equalizer Wearing- Plates for Journal Boxes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to equalized car trucks, or,'in other words, to trucks in which equalizers are seated on the tops of the journal boxes, and has for its ob ect toimprove the same in the several particulars hereinafter noted.

The invention consists of the novel construction and combination of parts hereinafter described and defined in the claims.

The function of the equalizers is to take the up and down movement and to properly distribute the load to the several wheel journals. In six-wheeled trucks of the equalized pedestal type, when the front equalizers are temporarily loaded heavier than their normal proportion, the rear equalizers are loaded just that much lighter, and these varying loads, first on the rope and then on the other set of equalizers produce movement'of the equalizers on the tops of the boxes which results in very considerable wear, especially to the top of the box which is usually a cast structure. Hence, it happens that the journal boxes are frequently rendered useless by wear on the tops before they have otherwise been Worn to any considerable extent.

To obviate the abovenoted defect incident to wear and resulting waste of otherwise good boxes, I provide detachable wearing plates which are seated on the tops of the boxes, and which afford bearings for the equalizers. Otherwise stated, the detachable wearing plates are directly interposed between the tops of the journal boxes and the overlying ends of the equalizers. There is no movement of the wearing plates on the boxes, and hence, no wear between the same, but the wear is taken entirely between the equalizers and Wearing plates, and chiefly by the latter. Hence, it, of course, follows that when any wearing plate has been much Worn, it may be removed and a new wearing plate substituted therefor, at

a very small cost, and without requiring the parts of the truck to be disassembled.

In the accompanying drawings which illustrate the invention, like characters indicate like parts throughout the several wearing plate applied thereto, portions of the equalizers being indicated by dotted lines only; Figs. 3, et and 5 are views, respectively, in plan, side and elevation, the end elevation showing one of the detachable wearing plates illustrated in Figs. 1 and 2;. and Fig. 6 is a segmentary section of a journal box illustrating a modified form or detachable wearing arrangement of the plate.

Of the parts of the car truck, it is only desirable for the purposes of this case to particularly note the wheels 1, the truck frame 2, the pedestals 3, the journal boxes 4, the equalizers 5, and springs 6 and 7 The detachable wearing plates 8, shown in Figs. 1 to 5, inclusive, are provided at their ends with downwardly flaring flanges 9 that closely engage beveled edge portions of the box. These wearing plates, as is evident, are thus made to very closely fit the tops of the boxes. They are held against sliding movements longitudinally of the truck of the said flanges 9 and are held against movements" transversely of the truck by flanges 4, or other devices on the box. The wearing plates which are applied to the end or outside journal boxes are preferably provided with single centrally located lugs 10, while the wearing plates that are applied to the central or intermediate journal boxes, are provided with two such lugs. The equalizers rest on the wearing plates in the manner shown and are provided with notches to receive "the lugs 10, so that the said lugs hold the equalizers against sliding movements on the wearing plates longitudinally of the truck. The said wearing plates in the first illustration are provided in their sides'with raised flanges 11, between which the ends of the equalizers are placed.

In the slightly modified construction illustrated in Fig. 6, the wearing plate 8 is detachably seated in a depression formed in the top of the box, and is preferably provided with one or more equalizer engaging lugs 10.

The wearing plates illustrated in Figs. 1

' to 5, inclusive, are designed to fit the tops of standard journal boxes, while the wearmay be made up by providing the journal boxes for the wheels of smaller diameter with thicker wearing plates than are provided for the ournal boxes of larger diameter. Thus the level and proper bearing of i the equalizers on the wearing plates is maintained.

a detachable wearing plate norma anchored against movement in respect thereto,

and having its upper portion exposed for engagement with an equalizer.

2. In a car truck, the combination with journal boxes and equalizers, of detachable wearing plates directly interposed between the tops of said boxes and the overlying ends of said equalizer, the said wearing plates being normally anchored against movement in respect to said boxes, whereby all wear will be taken between said equalizer and wearing plates.

v 3. A journal box provided on its top with a detachable wearing plate for engagement with the equalizers, the said wearlng plate having an upwardly projecting equalizer engaging lug, and laterally spaced side flanges.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE H. GILMAN.

Witnesses:

BERNICE G. WHEELER, HARRY D. KrLaoRE.

Copies of this patent may be obtained for five cents each, by addressing the commissioner oi Patents,

Washington, D. G. 

